289709820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22669}}^1$

素因数の和:22755

約数の個数: 72

約数和(自身を含む): 891203040

約数和(自身を除く): 601493220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 22669, 45338, 68007, 90676, 113345, 136014, 204021, 226690, 272028, 340035, 408042, 453380, 680070, 816084, 1020105, 1360140, 1609499, 2040210, 3218998, 4080420, 4828497, 6437996, 8047495, 9656994, 14485491, 16094990, 19313988, 24142485, 28970982, 32189980, 48284970, 57941964, 72427455, 96569940, 144854910, 289709820]

約数ペア:

[(1, 289709820), (2, 144854910), (3, 96569940), (4, 72427455), (5, 57941964), (6, 48284970), (9, 32189980), (10, 28970982), (12, 24142485), (15, 19313988), (18, 16094990), (20, 14485491), (30, 9656994), (36, 8047495), (45, 6437996), (60, 4828497), (71, 4080420), (90, 3218998), (142, 2040210), (180, 1609499), (213, 1360140), (284, 1020105), (355, 816084), (426, 680070), (639, 453380), (710, 408042), (852, 340035), (1065, 272028), (1278, 226690), (1420, 204021), (2130, 136014), (2556, 113345), (3195, 90676), (4260, 68007), (6390, 45338), (12780, 22669)]